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Documented phenomenon

Phillyhenge: Philadelphia

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Sunset · Thursday, 3 September 2026

07:22 PM EDT · Look toward W (279°)

Philadelphia: sunset bearing across the year vs Market Street

240°250°260°270°280°290°300°A2026SONDJ2027FMAMJJAstreet axis 279.3°3 Sept9 Apr30 Augtoday3 Sept: sun sets at 280.7°, 1.4° off Market Street
The dashed line is the street. Where the sun's curve touches it are the henge days. Drag across the year to move the sun.

Phillyhenge is the moment the rising or setting sun lines up with Market Street in Philadelphia.

The date above is the next time it happens, computed from the street's geometry. The windows further down list the full range of days the alignment holds.

Sunset alignment windows

Sunrise alignment windows

Street corridors

Also seen along: Chestnut Street, Walnut Street, South Street

Streethenge calculates geometric solar and lunar alignments. Visibility on site depends on weather, buildings, trees, terrain, safety, and access.

Phillyhenge dates: when the sun lines up in Philadelphia